Air Quality Guide for Ozone

AIR QUALITY INDEX
Index Values Descriptors Cautionary Statements for Ozone
0 to 50 Good None
51 to 100 Moderate
Unusually sensitive people should consider limiting prolonged outdoor exertion.
101 to 150 Unhealthy for Sensitive Groups
Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151 to 200 Unhealthy
Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.

201 to 300

Very Unhealthy

Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.

The illustration below shows how you might see the Air Quality Index (AQI) reported.  In this example, an AQI value of 130 is reported, which means that ozone levels are unhealthy for sensitive groups.

For detailed information about ozone: www.deq.state.la.us/evaluation/ozone/index.htm